National graflex II shutter repair

[kl122002]

Recently I have received a National graflex series II. The rubber shitter curtains are fine but the mechanics was dead.
I managed to get the repair manual of Series I to study, and then I followed the steps and now it is also getting back to work.

When I tried to change the speed ( ie the gap size between the curtains) from 9 to 4 which is fine. But once I trying to get wider to 3 , I heard the wheels skipped by making click sounds , and for 2 and 1 I can hear the upper wheels that driving the upper curtain is skipping. It feels like something there when blocking the wheel

Anyone knows how to repair national graflex here?

 

[Alex Varas]

These photos are from when I serviced mine, I they will help because I no longer have the camera.

National Graflex series II - shutter and frame counting.

Speed N1 and the frame counter were not working fine.

www.flickr.com

 

[kl122002]

These photos are from when I serviced mine, I they will help because I no longer have the camera.

National Graflex series II - shutter and frame counting.

Speed N1 and the frame counter were not working fine.

www.flickr.com

Thanks for your photo .

I tried but the problem is still there. I am sure the tension , and the 4 rods the holding the curtains are fine . And I even know the "1" setting is fine as well . I took off the surface plate , put back the knob, lift & turn the setting wheel with pressing the kob firmly avoiding dislocation, I can see how the gears worked , and to be honest it worked well.

The overall gives me an impression that the something goes wrong with the clamps and the 2 wheels.